Class 9 Exam > Class 9 Questions > Match the following with correct response.(1)...
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Match the following with correct response.
(1) Sound waves
(2) Radio waves
(3) Supersonic jet
(4) Mechanical waves
(A) Longitudinal waves
(B) Shock waves
(C) Transverse waves
(D) Elastic waves
(1) Sound waves
(2) Radio waves
(3) Supersonic jet
(4) Mechanical waves
(A) Longitudinal waves
(B) Shock waves
(C) Transverse waves
(D) Elastic waves
- a)1-C, 2-B, 3-D, 4-A
- b)1-D, 2-A, 3-C, 4-B
- c)1-B, 2-D, 3-A, 4-C
- d)1-A, 2-C, 3-B, 4-D
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Match the following with correct response.(1) Sound waves (2) Radio wa...
Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.
Waves that, like sound, vibrate in the same direction as their direction of propagation are longitudinal waves, while waves that vibrate at right angles to their direction of propagation are transverse waves. Radio waves are one kind of transverse wave.
Waves that, like sound, vibrate in the same direction as their direction of propagation are longitudinal waves, while waves that vibrate at right angles to their direction of propagation are transverse waves. Radio waves are one kind of transverse wave.
An aeroplane or a supersonic jet moving at supersonic speed produces shock waves in air.These shock waves carry a large amount of energy.
A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia.
A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium.Any kind of wave (mechanical or electromagnetic) has a certain energy. Mechanical waves can be produced only in media which possess elasticity and inertia.
Most Upvoted Answer
Match the following with correct response.(1) Sound waves (2) Radio wa...
Answer:
Key Points:
- Sound waves are longitudinal waves.
- Radio waves are transverse waves.
- Supersonic jet creates shock waves.
- Mechanical waves include both longitudinal and transverse waves.
Explanation:
Sound waves:
- Sound waves are produced by the vibration of an object.
- They are mechanical waves that require a medium to travel through, such as air, water, or solids.
- Sound waves are longitudinal waves because the particles of the medium vibrate parallel to the direction of wave propagation.
Radio waves:
- Radio waves are a type of electromagnetic wave.
- They are transverse waves because the electric and magnetic fields oscillate perpendicular to the direction of wave propagation.
- Radio waves are used for various purposes, including communication, broadcasting, and radar.
Supersonic jet:
- A supersonic jet is an aircraft that can travel faster than the speed of sound.
- When a supersonic jet moves through the air, it creates shock waves.
- Shock waves are a type of compression wave that occurs when an object moves faster than the speed of sound.
- These shock waves can be heard as a sonic boom when the supersonic jet passes by.
Mechanical waves:
- Mechanical waves are waves that require a medium to travel through.
- They can be either longitudinal or transverse waves.
- Longitudinal waves are waves in which the particles of the medium vibrate parallel to the direction of wave propagation.
- Transverse waves are waves in which the particles of the medium vibrate perpendicular to the direction of wave propagation.
- Mechanical waves include various types, such as sound waves, water waves, and seismic waves.
Matching the options:
- Sound waves are longitudinal waves. (1-A)
- Radio waves are transverse waves. (2-C)
- Supersonic jet creates shock waves. (3-B)
- Mechanical waves include both longitudinal and transverse waves. (4-D)
Therefore, the correct matching is option D: 1-A, 2-C, 3-B, 4-D.
Key Points:
- Sound waves are longitudinal waves.
- Radio waves are transverse waves.
- Supersonic jet creates shock waves.
- Mechanical waves include both longitudinal and transverse waves.
Explanation:
Sound waves:
- Sound waves are produced by the vibration of an object.
- They are mechanical waves that require a medium to travel through, such as air, water, or solids.
- Sound waves are longitudinal waves because the particles of the medium vibrate parallel to the direction of wave propagation.
Radio waves:
- Radio waves are a type of electromagnetic wave.
- They are transverse waves because the electric and magnetic fields oscillate perpendicular to the direction of wave propagation.
- Radio waves are used for various purposes, including communication, broadcasting, and radar.
Supersonic jet:
- A supersonic jet is an aircraft that can travel faster than the speed of sound.
- When a supersonic jet moves through the air, it creates shock waves.
- Shock waves are a type of compression wave that occurs when an object moves faster than the speed of sound.
- These shock waves can be heard as a sonic boom when the supersonic jet passes by.
Mechanical waves:
- Mechanical waves are waves that require a medium to travel through.
- They can be either longitudinal or transverse waves.
- Longitudinal waves are waves in which the particles of the medium vibrate parallel to the direction of wave propagation.
- Transverse waves are waves in which the particles of the medium vibrate perpendicular to the direction of wave propagation.
- Mechanical waves include various types, such as sound waves, water waves, and seismic waves.
Matching the options:
- Sound waves are longitudinal waves. (1-A)
- Radio waves are transverse waves. (2-C)
- Supersonic jet creates shock waves. (3-B)
- Mechanical waves include both longitudinal and transverse waves. (4-D)
Therefore, the correct matching is option D: 1-A, 2-C, 3-B, 4-D.
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